Good job! They'll be much happier in there with all of that air flow.

Just a small thing, that food hopper is probably going to get chewed to ribbons(hope it has good food mix in it, not pet store junk), so I'd want to recommend a ceramic bowl, like you'd use for a dog. You can find some really cute ones at the dollar store. My girls have 2 in their cage, one for food mix that I make and one for lab blocks(which is empty alot as they hoard them and eat at their leisure... turds).

good luck with 'em.